source:Tech news incn 2012, the physicist Frank Wilczek He put forward a strange theory: according to him, there is a structure made up of a group of particles that move periodically and return to their original state; He baptized this structure, the “time crystal”.This name comes under what is observed in the “classic” crystal. In fact, The structure of a regular crystal will show a repeating pattern in different directions in space. However, in a time crystal, the pattern repeats periodically over time, like an oscillator. The physicist also adds that time crystal It must be distinguished fr...
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source:PHYSORGFor years, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have engineered metasurfaces to manipulate light based on its polarization state. That research has contributed to advances in polarization technology—but metasurface technology has proven more powerful than even the researchers themselves realized.Now, researchers have uncovered hidden potential in these metasurfaces and, in a new paper, demonstrated optical devices that manipulate light's polarization state with an unprecedented degree of control.'This research shows ...
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2021
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source:The West AustralianAustralian Bauxite’s foray into rare earth elements seems to be hitting the mark with latest assay results from exploration drilling at the company’s bauxite project in northern Tasmania showing a significant increase in the extent and thickness of the rare earths enrichment within the bauxite project.New mineralised zones appear to be trending to the northeast, northwest and to the south.The significant anomalous rare earth elements recorded from the DL130 bauxite project west of Launceston is neodymium, which is the main component of super-magnets used in electric v...
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2021
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source:Nationa ObserverAt a laboratory inside a Google data centre in Mayes County, Okla., researchers spent the fall of 2019 disassembling old hard disk drives by hand in order to extract a two-inch-long component known as the magnet assembly. Consisting of two powerful rare earth magnets, the magnet assembly is a critical muscle within the hard drive, controlling an actuator arm that allows the device to read and write data.Over the course of six weeks, the scientists harvested 6,100 of these magnetic muscles, all of them effectively good as new. The magnets were then shipped to a hard drive...
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2021
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